baktta



L. A. BANTA.

. CABBURATION DEVICE. I APPLICATION FILED AUG.H. I917. 1,355,527, Patented Oct. 12,1920. v

2 SHEETS-SHEET 2.

LEN A. BANTA, OF CLEAR-FIELD, PENNSYLVANIA.

CAEBURATION DEVICE.

Specification of Letters Patent.

Application filed August 11, 1917. Serial No. 185,730.

To all who-m it may (707103?41! Be it known that I, LEN A. BANTA, a citizen of the United States, residing at Clearfield. in the county of Clearfield and State of Pennsylvania, have invented certain new and useful Improvements in Carburation Devices, of which the following is a specification.

This invention has relation to internal combustion engines, and has for an object to provide means adapted to be placedbetween the intake manifold and carbureter for thoroughly mixing the vapor prior .to its ontrance into the cylinders and for insuring the vaporization of liquid fuel.

Another object of the invention is to provide means of the character above described, embodying in addition, means for admitting variable quantities of heated air to further insure perfect vaporization of liquid fuel.

A still further object of the invention is to providemeans in a device of the character above described, for permitting the entrance of fresh cold air at a point between the manifold and the carbureter, thereby cutting out the carburetor to effect a saving of fuel at certain times, and for other purposes.

In addition to the foregoing, this invention comprehends improvements in the details of construction and arrangement of parts, to be hereinafter described and particularly pointed out in the appended claim.

In the accompanying drawings in which similar and corresponding parts are designated by the same characters of reference, throughout the several views in which they appear:

Figure 1 is a view in side elevation of an internal combustion engine for motor vehicles, illustrating the embodying therein of my invention.

Fig. 2 is a transverse section taken through my invention, and

Fig. 3 is a view of the device in longitudinal section.

With reference to the drawings, 10 indicates the intake manifold of an internal combustion engine, 11 the exhaust manifold and 12 a conventional type of carburetor.

My invention, indicated generally at 13 is interposed between the carbureter and the inlet of the intake manifold and includes a hollow horizontally held cylinder or drum forming the mixing chamber, with an intake or inlet 15 at one end for connection to th carburetor, and an exit or outlet 16 at the other end for connection to the manifold. A plurality of downwardly extending semicircular baffle plates 9, the lower edges of these plates being held at a point below the center of the drum as shown in Fig. 3, and a plurality of baflie plates'l'? of semicircular configuration are arranged within the drum or casing 14:, at

opposite sides thereof with the diametrical or straight lower edge of one plate extending into the space between a pair of plates at the opposite side of the casing as indicated. These ll-shaped lips 8 form interrupters causing a swirling movement of the vapors thereby insuring the vapors being thoroughly mixed. The diametricaledges of the plates are furthermore bent as at 18 toward the inlet opening 15 of the casing. As shown the straight lower edges or lips 18, of the upper bafiie plates 9, are held betweenthe lips 19 of the upwardly extending plates 17, in staggered relation, all of said lips being held obliquely as disclosed.

These lips 18 and 19 perform a very im portant function in that they serve not only 1n arresting any fore1gn matter, but the upwardly extending lips 18 form troughs in which are collected any drops or particles of fuel thatmay have passed through the carburetor.

Patented Oct. 12, 1920. I

An opening a is formed in the side of the I casing 1 1 at a point adjacent the inlet opening 15, and a vertical tubular member 20 is placed at one end in communication with said opening. The tubular member is formed with a pair of vertically spaced openings 21 and 22, the opening 21 leading directly to the atmosphere, and the opening 22' into a pipe 23 which is wound several times around the exhaust-manifold, and is open at its other end to the atmosphere.

A tubular valve 24, closed at one end as at 25 is inserted open endfirst into the tubular member 20 and is formed with a pair of openings 26 and 27 in vertical spaced relation which are also spaced relatively circumferentially. The opening 26 is intended for registration with the opening 21 at one position of the valve; and the opening 27 for registration with the opening 22 1n another position of the valve. An arm 28 is secured to the top of the valve and any suitable connection for said arm may be extended toward the operators seat, whereby the valve may be rotated.

A pipe 29 communicates at one end with the casing 14:, and at its other end with a source of fuel supply; a valve 30 being interposed in said pipe to control the flow of fuel through the latter.

In use, the vapor drawn from the carbureter by suction of the engine is compelled to pass through the casin g 14: whereupon the mixture of air and vapor is more thoroughly intermixed to homogeneity by pass-. ing back and forth between the baffle plates,

v. the effect being heightened by the her-it edges.

18 against, which the vapor impinges. Heated air may be introduced into the easing by rotating the valve 2% so as to place the openings 22 and 27 in registration whereupon heated air will be drawn in by suction of the engine for intermixture with. the vapor. It will be obvious that if the valve is rotated so as to place th openings 21 and 26 in registration, air will be drawn directly into the casing from the atmosphere thereby cutting out the carbureter since openings 21 and 26 are of sufficient size to break all suction. It will also be apparent that the engine may be readily primed by admitting fuel into the casing through the pipe 29 insuring a rich mixture.

From the, foregoing it will be apparent that low grade fuel may be successfully used with my improvement, since by the introduction of heated air into the mixing chamber a fuel of low volatility may be thoroughly vaporized. A considerable say ing of fuel may also be effected by the use of my invention as for instance, when traveling down hill the carbureter may be cut out by opening full wide the valve 24, whereby introduction of fuel to the cylinders will be prevented. Furthermore, owing to the fact that by the use of my device the introduction of liquid fuel into the cylinders is prevented, carbon deposits will be avoided. The valve serves as a means whereby the amount of air drawn into the cylinders may be varied at the will of the driver at any time, thereby permitting a variation of the richness of the mixture, a rich mixture being available when desired with an opportunity to reduce the mixture when a rich mixture is unnecessarywithout affecting the adjustment of the carbureter.

From the foregoing itwill be apparent that not only may a saving of fuel be ac complishedby the use of my device in many ways, but the device also acts to retain the engine in good working condition.

A saving of lubricating oil is moreover effected since in going down grade ports 26 and 21 are 'put into full registry and no vapor is introduced into the motor and the oil is not burned up. It will be obvious that the vapor introduced into the motor by means of my invention is of a higher temperature than ordinarily, thereby thoroughly vaporizing the fuel and permitting the use of a fuel of low volatility. It is to be noted that lllflSHillCll as the vapor drawn into the motor consists of innumerable small globules, and these globules, by l e' dashed against the turned edges of the l fies, and from one baffle to another 2 c further subd' 'ided until the fuel is the; oughly vaporated.

l vhile I have illustrated and described my invention with some degree of particula ity, I realize that in practise many alterations therein may be made; and I therefore desire to reserve the right and privilege'of changing the form of the details of con-, struction and otherwise altering the arrangemcnt of the correlated parts, without departing from the spirit of the invention or the scope of the appended claim.

Having thus d scribed my invention, what I claim as new and desire to secure by Letters Patent is:

A device of the character described including a horizontally held drum having an intake and an exhaust opening in its ends, a plurality of semi-circular baffle plates ex tending downwardly to a point below the center of said drum each plate ending in an upwardly obliquely extending straight lip,

said lips forming troughs, and a plurality of counterpart semi-circular upwardly ex tending baffle plates located between said downwardly extending plates the upper edges of which are held at a point above the center of said drum, each plate ending in a downwardly obliquely extending straight lip all of said lips being directed toward the intake end of said drum said lips being arranged in staggered relation, said downwardly extending lips forming V-shapcd interrupters, said troughs collecting any drops and particles'of fuel passing through said drum, all arranged as and for the purpose set forth. 7

In testimony whereof aiiix my signature Witnesses:

E. P. MoCLINTooK, W. B. MCBRIDE. 

